Help your electric cooling fan get the coolant-temperature signal it depends on with the Standard Ignition Engine Cooling Fan Switch TS-381, which the manufacturer also lists as a coolant fan switch. It is a direct-fit replacement for many vehicles, among them the 1997-2001 Toyota Camry, 2001-2003 Toyota Sienna and 1999-2002 Toyota Solara. See the "Vehicles it fits" section for the full list and engine-level details.
This thermal switch senses coolant temperature. When the coolant reaches its calibrated set point, the switch makes electrical contact and passes a signal to the fan controller.
- Factory-calibrated: during production, every thermal switch is calibrated to make electrical contact at its specified lower-temperature set point.
- Tested for actuation: all units are calibrated and tested to confirm that the switch actuates at its specified temperature.
- Controlled manufacturing: Standard Ignition is a global manufacturer of original equipment ignition products and maintains complete quality control throughout manufacturing, from componentry to finished product.
- Built for the shop: its robust design and high-grade materials are intended to meet the stringent demands of today's service professional.
Signs this switch may need replacing: a cooling fan that does not come on as the engine warms up, a fan that will not shut off, or a temperature gauge that climbs at idle or in traffic. Relays, wiring, the fan motor, or the controller can cause the same symptoms, so diagnose the circuit before replacing the switch.
Interchange: 17-1157
171157 · TFS638 · SW1435 · FS278 · 8942833020
This part cross-references / interchanges with the following part numbers:
TFS638, SW1435, FS278, 17-1157, TS-381, 8942833020
Frequently Asked Questions
What does an engine cooling fan switch do?
It senses engine coolant temperature and makes electrical contact at its calibrated set point. That sends a signal to the fan controller so the electric cooling fan circuit can respond.
Which vehicles does the TS-381 fit?
It fits many vehicles, among them the 1997-2001 Toyota Camry, 2001-2003 Toyota Sienna and 1999-2002 Toyota Solara. See the "Vehicles it fits" section for the full list and engine details.
Is this Standard Ignition switch calibrated and tested?
Yes. All units are calibrated and tested to confirm the switch actuates at its specified temperature. Each one is factory-calibrated to make contact at its lower-temperature set point.
What are signs the fan switch may be failing?
Common signs are a cooling fan that won't come on as the engine warms, a fan that won't shut off, or rising temperature at idle. Relays and wiring can cause the same symptoms, so diagnose the circuit first.
What part numbers does the TS-381 interchange with?
It interchanges with 17-1157 (also written 171157), TFS638, SW1435, FS278, and 8942833020.
